blow vs thump

blow and thump both are nouns.

Word	Noun	Adjective	Verb	Adverb
blow	Yes	No	Yes	No
thump	Yes	No	Yes	No

As nouns, thump is a hyponym of blow; that is, thump is a word with a more specific, narrower meaning than blow:

blow (noun)	thump (noun)
a powerful stroke with the fist or a weapon	a heavy blow with the hand
forceful exhalation through the nose or mouth	a heavy dull sound (as made by impact of heavy objects)
street names for cocaine
an impact (as from a collision)
an unpleasant or disappointing surprise
an unfortunate happening that hinders or impedes; something that is thwarting or frustrating
a strong current of air

blow (verb)	thump (verb)
exhale hard	hit hard with the hand, fist, or some heavy instrument
free of obstruction by blowing air through	move rhythmically
melt, break, or become otherwise unusable	make a dull sound
burst suddenly
shape by blowing
show off
cause to be revealed and jeopardized
allow to regain its breath
deposit eggs (of insects)
be in motion due to some air or water current
cause to move by means of an air current
leave; informal or rude
cause air to go in, on, or through
spout moist air from the blowhole
play or sound a wind instrument
make a sound as if blown
sound by having air expelled through a tube
provide sexual gratification through oral stimulation
spend lavishly or wastefully on
spend thoughtlessly; throw away
make a mess of, destroy or ruin
be inadequate or objectionable
be blowing or storming